Package org.apache.dubbo.remoting.buffer
Class HeapChannelBuffer
java.lang.Object
org.apache.dubbo.remoting.buffer.AbstractChannelBuffer
org.apache.dubbo.remoting.buffer.HeapChannelBuffer
- All Implemented Interfaces:
Comparable<ChannelBuffer>
,ChannelBuffer
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Constructor Summary
ConstructorDescriptionHeapChannelBuffer
(byte[] array) Creates a new heap buffer with an existing byte array.HeapChannelBuffer
(int length) Creates a new heap buffer with a newly allocated byte array. -
Method Summary
Modifier and TypeMethodDescriptionbyte[]
array()
Returns the backing byte array of this buffer.int
Returns the offset of the first byte within the backing byte array of this buffer.int
capacity()
Returns the number of bytes (octets) this buffer can contain.copy
(int index, int length) Returns a copy of this buffer's sub-region.factory()
Returns the factory which creates aChannelBuffer
whose type and defaultByteOrder
are same with this buffer.byte
getByte
(int index) Gets a byte at the specified absoluteindex
in this buffer.void
getBytes
(int index, byte[] dst, int dstIndex, int length) Transfers this buffer's data to the specified destination starting at the specified absoluteindex
.void
getBytes
(int index, OutputStream out, int length) Transfers this buffer's data to the specified stream starting at the specified absoluteindex
.void
getBytes
(int index, ByteBuffer dst) Transfers this buffer's data to the specified destination starting at the specified absoluteindex
until the destination's position reaches its limit.int
getBytes
(int index, GatheringByteChannel out, int length) void
getBytes
(int index, ChannelBuffer dst, int dstIndex, int length) Transfers this buffer's data to the specified destination starting at the specified absoluteindex
.boolean
hasArray()
Returnstrue
if and only if this buffer has a backing byte array.boolean
isDirect()
Returnstrue
if and only if this buffer is backed by an NIO direct buffer.void
setByte
(int index, int value) Sets the specified byte at the specified absoluteindex
in this buffer.void
setBytes
(int index, byte[] src, int srcIndex, int length) Transfers the specified source array's data to this buffer starting at the specified absoluteindex
.int
setBytes
(int index, InputStream in, int length) Transfers the content of the specified source stream to this buffer starting at the specified absoluteindex
.void
setBytes
(int index, ByteBuffer src) Transfers the specified source buffer's data to this buffer starting at the specified absoluteindex
until the source buffer's position reaches its limit.int
setBytes
(int index, ScatteringByteChannel in, int length) void
setBytes
(int index, ChannelBuffer src, int srcIndex, int length) Transfers the specified source buffer's data to this buffer starting at the specified absoluteindex
.toByteBuffer
(int index, int length) Converts this buffer's sub-region into a NIO buffer.Methods inherited from class org.apache.dubbo.remoting.buffer.AbstractChannelBuffer
clear, compareTo, copy, discardReadBytes, ensureWritableBytes, equals, getBytes, getBytes, getBytes, hashCode, markReaderIndex, markWriterIndex, readable, readableBytes, readByte, readBytes, readBytes, readBytes, readBytes, readBytes, readBytes, readBytes, readBytes, readerIndex, readerIndex, resetReaderIndex, resetWriterIndex, setBytes, setBytes, setBytes, setIndex, skipBytes, toByteBuffer, toString, writable, writableBytes, writeByte, writeBytes, writeBytes, writeBytes, writeBytes, writeBytes, writeBytes, writeBytes, writerIndex, writerIndex
Methods inherited from interface org.apache.dubbo.remoting.buffer.ChannelBuffer
release
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Constructor Details
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HeapChannelBuffer
public HeapChannelBuffer(int length) Creates a new heap buffer with a newly allocated byte array.- Parameters:
length
- the length of the new byte array
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HeapChannelBuffer
public HeapChannelBuffer(byte[] array) Creates a new heap buffer with an existing byte array.- Parameters:
array
- the byte array to wrap
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Method Details
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isDirect
public boolean isDirect()Description copied from interface:ChannelBuffer
Returnstrue
if and only if this buffer is backed by an NIO direct buffer. -
capacity
public int capacity()Description copied from interface:ChannelBuffer
Returns the number of bytes (octets) this buffer can contain. -
hasArray
public boolean hasArray()Description copied from interface:ChannelBuffer
Returnstrue
if and only if this buffer has a backing byte array. If this method returns true, you can safely callChannelBuffer.array()
andChannelBuffer.arrayOffset()
. -
array
public byte[] array()Description copied from interface:ChannelBuffer
Returns the backing byte array of this buffer. -
arrayOffset
public int arrayOffset()Description copied from interface:ChannelBuffer
Returns the offset of the first byte within the backing byte array of this buffer. -
getByte
public byte getByte(int index) Description copied from interface:ChannelBuffer
Gets a byte at the specified absoluteindex
in this buffer. This method does not modifyreaderIndex
orwriterIndex
of this buffer. -
getBytes
Description copied from interface:ChannelBuffer
Transfers this buffer's data to the specified destination starting at the specified absoluteindex
. This method does not modifyreaderIndex
orwriterIndex
of both the source (i.e.this
) and the destination.- Parameters:
dstIndex
- the first index of the destinationlength
- the number of bytes to transfer
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getBytes
public void getBytes(int index, byte[] dst, int dstIndex, int length) Description copied from interface:ChannelBuffer
Transfers this buffer's data to the specified destination starting at the specified absoluteindex
. This method does not modifyreaderIndex
orwriterIndex
of this buffer.- Parameters:
dstIndex
- the first index of the destinationlength
- the number of bytes to transfer
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getBytes
Description copied from interface:ChannelBuffer
Transfers this buffer's data to the specified destination starting at the specified absoluteindex
until the destination's position reaches its limit. This method does not modifyreaderIndex
orwriterIndex
of this buffer while the destination'sposition
will be increased. -
getBytes
Description copied from interface:ChannelBuffer
Transfers this buffer's data to the specified stream starting at the specified absoluteindex
. This method does not modifyreaderIndex
orwriterIndex
of this buffer.- Parameters:
length
- the number of bytes to transfer- Throws:
IOException
- if the specified stream threw an exception during I/O
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getBytes
- Throws:
IOException
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setByte
public void setByte(int index, int value) Description copied from interface:ChannelBuffer
Sets the specified byte at the specified absoluteindex
in this buffer. The 24 high-order bits of the specified value are ignored. This method does not modifyreaderIndex
orwriterIndex
of this buffer. -
setBytes
Description copied from interface:ChannelBuffer
Transfers the specified source buffer's data to this buffer starting at the specified absoluteindex
. This method does not modifyreaderIndex
orwriterIndex
of both the source (i.e.this
) and the destination.- Parameters:
srcIndex
- the first index of the sourcelength
- the number of bytes to transfer
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setBytes
public void setBytes(int index, byte[] src, int srcIndex, int length) Description copied from interface:ChannelBuffer
Transfers the specified source array's data to this buffer starting at the specified absoluteindex
. This method does not modifyreaderIndex
orwriterIndex
of this buffer. -
setBytes
Description copied from interface:ChannelBuffer
Transfers the specified source buffer's data to this buffer starting at the specified absoluteindex
until the source buffer's position reaches its limit. This method does not modifyreaderIndex
orwriterIndex
of this buffer. -
setBytes
Description copied from interface:ChannelBuffer
Transfers the content of the specified source stream to this buffer starting at the specified absoluteindex
. This method does not modifyreaderIndex
orwriterIndex
of this buffer.- Parameters:
length
- the number of bytes to transfer- Returns:
- the actual number of bytes read in from the specified channel.
-1
if the specified channel is closed. - Throws:
IOException
- if the specified stream threw an exception during I/O
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setBytes
- Throws:
IOException
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copy
Description copied from interface:ChannelBuffer
Returns a copy of this buffer's sub-region. Modifying the content of the returned buffer or this buffer does not affect each other at all. This method does not modifyreaderIndex
orwriterIndex
of this buffer. -
factory
Description copied from interface:ChannelBuffer
Returns the factory which creates aChannelBuffer
whose type and defaultByteOrder
are same with this buffer. -
toByteBuffer
Description copied from interface:ChannelBuffer
Converts this buffer's sub-region into a NIO buffer. The returned buffer might or might not share the content with this buffer, while they have separate indexes and marks. This method does not modifyreaderIndex
orwriterIndex
of this buffer.
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